Thread (47 messages) flat view 47 messages, 9 authors, 2007-05-22

Re: [PATCH 12/13] gianfar: Add flags for magic packet and MDIO.

From: Kumar Gala <hidden>
Date: 2007-05-07 20:01:24

On May 7, 2007, at 2:54 PM, Scott Wood wrote:
Kumar Gala wrote:
quoted
On May 7, 2007, at 1:29 PM, Scott Wood wrote:
quoted
The magic packet flag indicates that the hardware has this
capability.  The MDIO flag indicates that this device's
registers contain active MDIO registers, and thus this
device should not be put to sleep.
Can you explain the MDIO part further, do you mean its the tsec  
that  has the MDIO registers in its address space or that its  
actively  using MDIO for something?
TSEC1 contains the MDIO registers for both TSEC1 and TSEC2.  Thus,  
TSEC1 cannot be put to sleep if TSEC2 is active (plus, the phy  
timer would have to be deactivated).  For now, the simple approach  
of never sleeping TSEC1 is used.
That's what I guessed was the case, just wasn't clear from the comment.

- k
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